The two men cooperated with police and consented to a search of the residence where police found black powder, fuses and pipe that could be used to make pipe bombs, and a cache of weapons that included handguns, rifles and shotguns, Bassett said.

Salazar was booked into the Solano County jail for discharging a firearm with gross negligence and possession of an assault weapon. Ugarte was booked for illegal discharge of a firearm with negligence and possession of an explosive device.

Vallejo police also responded to shots being fired at a residence in the 200 block of Arkansas Street around 8:50 p.m. Sunday.

The residents said a white newer model SUV drove by and fired shots at the residence, Bassett said. No one was injured.

“The victims said they had no idea why they were targeted,” Bassett said.

Police recovered numerous bullet casings at the scene, Bassett said.

There have been gang-related shootings in the neighborhood, Bassett said.

(Copyright 2012 by CBS San Francisco and Bay City News Service. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)